Antique fever thermometer with its original buy case, from 1918

Antique mercury fever thermometer from 1918; 35-42ºC, works correctly!
Numbers and letters are handcarved; SCOTT PREASTON buy / PATintier: ES...
Glas has no chips no cracks, case no dents
Size: 115 mm
Weith: 75 mm
Form: triangular
Case is 13 cm long
Thermometer and its case are in mint condition after more than 100 years!!